Rockwell Automation 1734-VHSC24 Point I/O Very High Speed Counter Module - Manual (Page 14)

14 POINT I/O 5V DC and 24V DC Very High Speed Counter Module
Publication 1734-IN003F-EN-E - January 2014
When you send a configuration to the module, you check it for consistency before
applying it.
Monitor this PE bit with your user program to isolate any problems with an improperly
configured module. If the configuration is acceptable, the counter ASIC is disabled while
the ASIC is loaded with new operational parameters. Outputs can turn off during this
reconfiguration.
Default Data Map
Message size: 6 or 10 Bytes
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
Produces
(scanner Rx) Channel 0 value of present counter state (LSW)
Channel 0 value of present counter state (MSW)
PE EF NR 0 FS FS OS OS 0 ZS BS AS C1 C0 ZD 0
Where: LSW = Least significant word
MSW = Most significant word
PE = Programming error
EF = EEPROM fault status
NR = Not ready status bit
FS = Output fault status bit – bit 10 for output 0, bit 11 for output 1
OS = Output on/off status bit – bit 8 for output 0, bit 9 for output 1
ZS = Z input status
BS = B input status
AS = A input status
C = Stored data count
ZD = Zero frequency detected
Message size: 2 or 4 Bytes
08...15 07 06 05 04 03 02 01 00
Consumes
(scanner Tx) 0 0 0 0 0 0 VR CP CR
0 DS ES 0E F0 DS ES 0E F0
Where: VR = Value reset of stored/accumulated count
CP = Counter preset
CR = Counter reset
DS = Diagnostic speed
ES = Electronic fuse select
OE = Output enable
FO = Force output